The New York Times
Current guidelines for the early detection of recommend a for men whose rises rapidly, no matter what the initial level. But a new study says that the practice does not help patients find aggressive cancers and that it results in many unnecessary biopsies.
P.S.A., or prostate-specific antigen, rises with age, and what is considered normal varies. In general, a level under 4 nanograms per milliliter is considered safe. But even with a normal reading, an increase of 0.35 nanograms per year is widely believed to be high enough to require a biopsy... Read More
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